chore: moving to llm example folder

[nnshah1]

What does the PR do?

Consolidating all llm specific pieces to examples folder. Further dir refactor to be done later when we can converge on common distributed runtime object.

Checklist

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• build
• ci
• docs
• feat
• fix
• perf
• refactor
• revert
• style
• test

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Background

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• closes GitHub issue: #xxx